Beverly McClellan represented Christina Aguilera's team with a powerful performance of veteran bluesman B.B. King's tune 'The Thrill Is Gone' on 'The Voice' tonight.

"Beverly will have a moment to showcase a softer side of her vocal," said Aguilera of the song choice.

"Christina's the best coach for me because she absolutely cares what I feel, what I think," said McClellan. "I would like to win because I'd like to give my music wings -- the wings that it hasn't had for 20 years."

For the performance, McClellan started off at the piano and her voice sounded quite strong. She then stood up and worked the stage for the remainder of the song.

Aguilera told McClellan after the performance, "You are one of the reasons that I am so thankful that I signed on to do this show," adding, "I knew that there was this bluesy, soulful side to you that could just break it down and tonight you did that -- and I love you for it."

Watch Beverly McClellan Perform 'Thrill Is Gone' on 'The Voice'